code: def is_lower_cased_megatron(pretrained_model_name):
      """
      Returns if the megatron is cased or uncased
  
      Args:
          pretrained_model_name (str): pretrained model name
      Returns:
          do_lower_cased (bool): whether the model uses lower cased data
      """
      _check_megatron_name(pretrained_model_name)
      return MEGATRON_CONFIG_MAP[pretrained_model_name]["do_lower_case"]
  
file_path: NeMo/nemo/collections/nlp/modules/common/megatron/megatron_utils.py
imports: import os
  import shutil
  from typing import Dict, List
  import torch
  import wget
  from torch.hub import _get_torch_home
  from nemo.utils import logging
label_desc: Use image node_id 10 for calling a global function with example usage: is_lower_cased_megatron(pretrained_model_name) and returns: MEGATRON_CONFIG_MAP